Accession Number : ADD001411

Title :   Center-Pole Magnetic Circuit.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : MacMaster,George H ; Dudley,Kenneth W

Report Date : 17 Dec 1974

Pagination or Media Count : 5

Abstract : The patent describes a field-producing permanent magnet fitting within the annular cathode of a crossed-field device, such as the magnetron. The magnet is an annular device having an inner cylinder of high-permeability steel forming a flux return path for the middle cylinder which is made of radially gaussed samarium cobalt material, and an outer section comprising two rings of high-permeability steel, one at each end of said middle section, forming pole pieces for the distribution of flux thru the interaction region of said crossed-field device.

Descriptors :   *Permanent magnets, *Crossed field devices, *Patents, Electron tube parts, Samarium intermetallics, Cobalt compounds, Samarium compounds

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE